What is Muscle Testing (aka applied kinesiology)?
Muscle testing is a procedure where a person contracts (or uses) a muscle and the tester presses against that muscle testing it for strength. A stimulus can then be applied and the tester can note whether that muscle has gotten stronger, weaker or stayed the same. For example, if you make and hold a bicep curl and then a person takes your hand and tries to uncurl your arm, they would be testing the strength of your bicep.